Energy Equations

[Matlynn Giles 2E]

When solving for E, should we use E=pc or E=hv=h(c/wavelength)

[Chem_Mod]

You can use either, depending on the information given in the question.

[Rajshree 1F]

based on what you are given, both equations can be used to get to the unknown variable you are looking for

[Adalia 3E]

The equation you use is based on both the information you are given and what you are planning to solve for

[Jaden Kwon 3C]

You can use either equation to get the energy of a particle but I don't think you can use E=pc for photons as photons have no mass and therefore no momentum.

[Chinmayi Mutyala 3H]

This would be determined based on what information is given in the question.

[Andre Fabian 1F]

The equation depends on the variables given in the question, as well as what you're trying to solve for. You can combine/relate these two equations with each other, in order to solve for particular values.


Hope this helps!
Andre

[tholz11]

Hi!
Depending on what information they give you, you could use either formula. Hope this is helpful (-:

[AnjikaFriedman-Jha2D]

it just depends if we are solving for frequency of wavelength based on the energy of a photon, E

[AnjikaFriedman-Jha2D]

it just depends if we are solving for frequency of wavelength based on the energy of a photon, E

[Fiona H 2E]

Either will work, just be sure to pay close attention to what the questions asks for specifically. Pretty often, there are times when you use multiple equations to solve one problem!

[205696437]

It depends on the question or problem you're trying to solve for, such as if your solving for something with mass or something that is electromagnetic

[Gabriel Wolf 3I]

When solving for E, should we use E=pc or E=hv=h(c/wavelength)

Depends on the context. However, you should try to keep in mind that the de Broglie equation should not be used for light.

[Nick Oscarson 1K]

When solving for energy, both equations E=pc and E=hv=h(c/wavelength) are usable. It would just depend on what is given in the problem.